Spring/Retainer Kit

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. SPECS Type: BC1030 Dual Free Length: 1.815 Seat: 1.400 @ 88 lbs Open: 0.950 @ 220 lbs Coil Bind: 0.790 Retainer Part Number: BC2011 Spring Seat: OEM Net Cam Lift: 0.510 12.95mm